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Finding the Fourth Proportional to 545,824.80, 818,737.20 and 309,628.80

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Solution

The fourth proportional to 545,824.80, 818,737.20 and 309,628.80 is: 464,443.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,824.80 : 818,737.20 = 309,628.80 : x
  2. Step 2: Convert to fraction form
    545,824.80/818,737.20 = 309,628.80/x
  3. Step 3: Cross multiply
    545,824.80x = 818,737.20 × 309,628.80
  4. Step 4: Simplify right side
    545,824.80x = 253,504,616,751.36
  5. Step 5: Solve for x
    x = 253,504,616,751.36/545,824.80
  6. Step 6: Final answer
    x = 464,443.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.